设置中首选网络类型屏蔽2G/3G

flatform:rk3288 + android7.1

问题:

设置 > 更多 > 移动网络 > 首选网络类型 选项中, 因为过认证需要把2G/3G的选项屏蔽掉

 

代码跟踪：

1.布局文件：packages\services\Telephony\res\xml\network_setting.xml

<ListPreference
        android:key="preferred_network_mode_key"
        android:title="@string/preferred_network_mode_title"
        android:summary="@string/preferred_network_mode_summary"
        android:entries="@array/preferred_network_mode_choices"
        android:entryValues="@array/preferred_network_mode_values"
        android:dialogTitle="@string/preferred_network_mode_dialogtitle" />

 

2.packages\services\Telephony\src\com\android\phone\MobileNetworkSettings.java

private static final String BUTTON_PREFERED_NETWORK_MODE = "preferred_network_mode_key";

    @Override
    protected void onCreate(Bundle icicle) {

        addPreferencesFromResource(R.xml.network_setting);

        mButton4glte = (SwitchPreference)findPreference(BUTTON_4G_LTE_KEY);
        mButton4glte.setOnPreferenceChangeListener(this);


        mButtonEnabledNetworks = (ListPreference) prefSet.findPreference(
                BUTTON_ENABLED_NETWORKS_KEY);
    }

这里主要实现的是，加载布局文件，按键的初始化。

 

找到找到这个listpreference的点击事件：

    public boolean onPreferenceChange(Preference preference, Object objValue) {
    
    //Set the modem network mode
                mPhone.setPreferredNetworkType(modemNetworkMode, mHandler
                        .obtainMessage(MyHandler.MESSAGE_SET_PREFERRED_NETWORK_TYPE));

}

private class MyHandler extends Handler {

        static final int MESSAGE_SET_PREFERRED_NETWORK_TYPE = 0;

        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case MESSAGE_SET_PREFERRED_NETWORK_TYPE:
                    handleSetPreferredNetworkTypeResponse(msg);
                    break;
            }
        }

        private void handleSetPreferredNetworkTypeResponse(Message msg) {
            if (isDestroyed()) { // Access preferences of activity only if it is not destroyed
                return;
            }

            AsyncResult ar = (AsyncResult) msg.obj;
            final int phoneSubId = mPhone.getSubId();

            if (ar.exception == null) {
                int networkMode;
                if (getPreferenceScreen().findPreference(BUTTON_PREFERED_NETWORK_MODE) != null)  {
                    networkMode =  Integer.parseInt(mButtonPreferredNetworkMode.getValue());
                    android.provider.Settings.Global.putInt(mPhone.getContext().getContentResolver(),
                            android.provider.Settings.Global.PREFERRED_NETWORK_MODE + phoneSubId,
                            networkMode );
                }
                if (getPreferenceScreen().findPreference(BUTTON_ENABLED_NETWORKS_KEY) != null)  {
                    networkMode = Integer.parseInt(mButtonEnabledNetworks.getValue());
                    android.provider.Settings.Global.putInt(mPhone.getContext().getContentResolver(),
                            android.provider.Settings.Global.PREFERRED_NETWORK_MODE + phoneSubId,
                            networkMode );
                }
            } else {
                if (DBG) {
                    log("handleSetPreferredNetworkTypeResponse: exception in setting network mode.");
                }
                updatePreferredNetworkUIFromDb();
            }
        }
    }

private void updatePreferredNetworkUIFromDb() {

        UpdateEnabledNetworksValueAndSummary(settingsNetworkMode);

    }

UpdateEnabledNetworksValueAndSummary就是2G/3G显示所在的地方，对应的屏蔽掉即可：

private void UpdateEnabledNetworksValueAndSummary(int NetworkMode) {
        switch (NetworkMode) {
/*            case Phone.NT_MODE_TDSCDMA_WCDMA:
            case Phone.NT_MODE_TDSCDMA_GSM_WCDMA:
            case Phone.NT_MODE_TDSCDMA_GSM:
                mButtonEnabledNetworks.setValue(
                        Integer.toString(Phone.NT_MODE_TDSCDMA_GSM_WCDMA));
                mButtonEnabledNetworks.setSummary(R.string.network_3G);
                break;
            case Phone.NT_MODE_WCDMA_ONLY:
            case Phone.NT_MODE_GSM_UMTS:
            case Phone.NT_MODE_WCDMA_PREF:
                if (!mIsGlobalCdma) {
                    mButtonEnabledNetworks.setValue(
                            Integer.toString(Phone.NT_MODE_WCDMA_PREF));
                    mButtonEnabledNetworks.setSummary(R.string.network_3G);
                } else {
                    mButtonEnabledNetworks.setValue(
                            Integer.toString(Phone.NT_MODE_LTE_CDMA_EVDO_GSM_WCDMA));
                    mButtonEnabledNetworks.setSummary(R.string.network_global);
                }
                break;
            case Phone.NT_MODE_GSM_ONLY:
                if (!mIsGlobalCdma) {
                    mButtonEnabledNetworks.setValue(
                            Integer.toString(Phone.NT_MODE_GSM_ONLY));
                    mButtonEnabledNetworks.setSummary(R.string.network_2G);
                } else {
                    mButtonEnabledNetworks.setValue(
                            Integer.toString(Phone.NT_MODE_LTE_CDMA_EVDO_GSM_WCDMA));
                    mButtonEnabledNetworks.setSummary(R.string.network_global);
                }
                break;
            case Phone.NT_MODE_LTE_GSM_WCDMA:
                if (isWorldMode()) {
                    mButtonEnabledNetworks.setSummary(
                            R.string.preferred_network_mode_lte_gsm_umts_summary);
                    controlCdmaOptions(false);
                    controlGsmOptions(true);
                    break;
                }
            case Phone.NT_MODE_LTE_ONLY:*/
            case Phone.NT_MODE_LTE_WCDMA:
                if (!mIsGlobalCdma) {
                    mButtonEnabledNetworks.setValue(
                            Integer.toString(Phone.NT_MODE_LTE_GSM_WCDMA));
                    mButtonEnabledNetworks.setSummary((mShow4GForLTE == true)
                            ? R.string.network_4G : R.string.network_lte);
                } else {
                    mButtonEnabledNetworks.setValue(
                            Integer.toString(Phone.NT_MODE_LTE_CDMA_EVDO_GSM_WCDMA));
                    mButtonEnabledNetworks.setSummary(R.string.network_global);
                }
                break;
            case Phone.NT_MODE_LTE_CDMA_AND_EVDO:
                if (isWorldMode()) {
                    mButtonEnabledNetworks.setSummary(
                            R.string.preferred_network_mode_lte_cdma_summary);
                    controlCdmaOptions(true);
                    controlGsmOptions(false);
                } else {
                    mButtonEnabledNetworks.setValue(
                            Integer.toString(Phone.NT_MODE_LTE_CDMA_AND_EVDO));
                    mButtonEnabledNetworks.setSummary(R.string.network_lte);
                }
                break;
 /*           case Phone.NT_MODE_TDSCDMA_CDMA_EVDO_GSM_WCDMA:
                mButtonEnabledNetworks.setValue(
                        Integer.toString(Phone.NT_MODE_TDSCDMA_CDMA_EVDO_GSM_WCDMA));
                mButtonEnabledNetworks.setSummary(R.string.network_3G);
                break;
            case Phone.NT_MODE_CDMA:
            case Phone.NT_MODE_EVDO_NO_CDMA:
            case Phone.NT_MODE_GLOBAL:
                mButtonEnabledNetworks.setValue(
                        Integer.toString(Phone.NT_MODE_CDMA));
                mButtonEnabledNetworks.setSummary(R.string.network_3G);
                break;
            case Phone.NT_MODE_CDMA_NO_EVDO:
                mButtonEnabledNetworks.setValue(
                        Integer.toString(Phone.NT_MODE_CDMA_NO_EVDO));
                mButtonEnabledNetworks.setSummary(R.string.network_1x);
                break;
            case Phone.NT_MODE_TDSCDMA_ONLY:
                mButtonEnabledNetworks.setValue(
                        Integer.toString(Phone.NT_MODE_TDSCDMA_ONLY));
                mButtonEnabledNetworks.setSummary(R.string.network_3G);
                break;
            case Phone.NT_MODE_LTE_TDSCDMA_GSM:
            case Phone.NT_MODE_LTE_TDSCDMA_GSM_WCDMA:
            case Phone.NT_MODE_LTE_TDSCDMA:
            case Phone.NT_MODE_LTE_TDSCDMA_WCDMA:
            case Phone.NT_MODE_LTE_TDSCDMA_CDMA_EVDO_GSM_WCDMA:*/
            case Phone.NT_MODE_LTE_CDMA_EVDO_GSM_WCDMA:
                if (isSupportTdscdma()) {
                    mButtonEnabledNetworks.setValue(
                            Integer.toString(Phone.NT_MODE_LTE_TDSCDMA_CDMA_EVDO_GSM_WCDMA));
                    mButtonEnabledNetworks.setSummary(R.string.network_lte);
                } else {
                    if (isWorldMode()) {
                        controlCdmaOptions(true);
                        controlGsmOptions(false);
                    }
                    mButtonEnabledNetworks.setValue(
                            Integer.toString(Phone.NT_MODE_LTE_CDMA_EVDO_GSM_WCDMA));
                    if (mPhone.getPhoneType() == PhoneConstants.PHONE_TYPE_CDMA ||
                            mIsGlobalCdma ||
                            isWorldMode()) {
                        mButtonEnabledNetworks.setSummary(R.string.network_global);
                    } else {
                        mButtonEnabledNetworks.setSummary((mShow4GForLTE == true)
                                ? R.string.network_4G : R.string.network_lte);
                    }
                }
                break;
            default:
                String errMsg = "Invalid Network Mode (" + NetworkMode + "). Ignore.";
                loge(errMsg);
                mButtonEnabledNetworks.setSummary(errMsg);
        }
    }

 

参考：https://blog.csdn.net/ansondroider/article/details/90377725

https://blog.csdn.net/qq_37207639/article/details/102397812?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_baidulandingword~default-1.pc_relevant_aa&spm=1001.2101.3001.4242.2&utm_relevant_index=4